9(x+3)-3x=81

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Solution for 9(x+3)-3x=81 equation:


Simplifying
9(x + 3) + -3x = 81

Reorder the terms:
9(3 + x) + -3x = 81
(3 * 9 + x * 9) + -3x = 81
(27 + 9x) + -3x = 81

Combine like terms: 9x + -3x = 6x
27 + 6x = 81

Solving
27 + 6x = 81

Solving for variable 'x'.

Move all terms containing x to the left, all other terms to the right.

Add '-27' to each side of the equation.
27 + -27 + 6x = 81 + -27

Combine like terms: 27 + -27 = 0
0 + 6x = 81 + -27
6x = 81 + -27

Combine like terms: 81 + -27 = 54
6x = 54

Divide each side by '6'.
x = 9

Simplifying
x = 9

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